project_four

Land Cover Data made available by Hawaii Statewide GIS Program. Data measures the various land use types on the Hawaiian Islands. Watershed Data made available by Hawaii Statewide GIS Program. Data measures watershed characterisitics of the Hawaiian Islands.

# attach packages
library(tidyverse)
library(sf)
library(tmap)
library(here)
library(janitor)
library(mapview)
library(paletteer)

# read in data
land <-read_sf(here("content","project","project_four","Land_Use_Land_Cover_LULC"), layer = "Land_Use_Land_Cover_LULC") %>% 
  clean_names()

# select data of interest
land_two <- land %>% 
  select(landcover)

# create an interactive map of land cover 
tmap_mode("view")+
  tm_shape(land_two)+
  tm_borders("white", lwd = .1)+
  tm_fill("landcover", legend.show = FALSE) +
  tm_basemap("Esri.WorldTerrain")+
  tm_layout(title = "Land use types of the Hawaiian Islands") 

# read and filter watershed data (interested in area of Watershed in square miles)
water <-read_sf(here("content","project","project_four","Watersheds"), layer = "Watersheds") %>% 
  clean_names() %>% 
  select(-objectid) %>% 
  rename("Area (square miles)" = area_sqmi)

# create an interactive map of the watershed data
tmap_mode("view")+
  tm_shape(water)+
  tm_borders("white", lwd = .1)+
  tm_fill("Area (square miles)", palette = "Reds") +
  tm_layout(title = "Size of Hawaiian Watersheds (Square Miles)")+
  tm_basemap("Esri.WorldTerrain")